40m QIL Cryo_Lab CTN SUS_Lab TCS_Lab OMC_Lab CRIME_Lab FEA ENG_Labs OptContFac Mariner WBEEShop
  40m Log, Page 77 of 344  Not logged in ELOG logo
ID Dateup Author Type Category Subject Text Attachments
  3832   Mon Nov 1 10:17:55 2010 steveUpdateGeneralbreakers relabelledPedro of the electrical shop helped to
retrace wires from the racks to the breakers.
Many wrong labels were replaced. These labels
 P1060970.JPGP1060972.JPGP1060975.JPG 
  3833   Mon Nov 1 10:28:41 2010 steveBureaucracySAFETYSuresh received 40m safety trainingOur new postdoc Suresh Doravari received
40m specific safety training last week.
  
  3834   Mon Nov 1 11:34:08 2010 josephbUpdateCDSCA.Client.Exception spam fixedProblem:
CA.Client.Exception...............................................
  
  3835   Mon Nov 1 12:38:56 2010 Leo SingerConfigurationComputerspython-sqlite installed on AllegraI installed the Python bindings for sqlite
on Allegra using
$ sudo yum install python-sqlite
  
  3836   Mon Nov 1 14:53:30 2010 josephb, alex, rolfUpdateCDSAlex updated FB and mx_streams codeProblem:
The framebuilder was being flaky. 
MX_streams would go down, prevent testpoints
  
  3837   Mon Nov 1 15:35:41 2010 josephbUpdateCDSFront end USR and CPU times now recorded by DAQProblem:
We have no record of how long the
CPUs are taking to perform a cycle's worth
  
  3838   Mon Nov 1 15:47:15 2010 yutaSummaryCDSCDS time delay measurementBackground:
  I measured CDS time delay last
week, but because of my lack of understanding
 downupsampling.pngCDSdelay2.png 
  3839   Mon Nov 1 16:43:24 2010 KojiSummaryCDSCDS time delay measurementUm, Beautiful.   
  3840   Mon Nov 1 17:27:47 2010 JenneUpdateSUSPRM ready for installation into chamber[Jenne, Suresh]
Over the weekend, Bob and Daphen
gave the PRM a 48hr. vacuum bake.  This
  
  3841   Mon Nov 1 19:32:08 2010 yutaSummaryCDSfb crashed? during c1ioo and c1mcs connection at ASCFrame builder
died again!!
  
  3842   Mon Nov 1 23:31:05 2010 yutaUpdateCDSchecked input hardware filter in single frequencyBackground:
  For input filter, we have analog
whitening filter and also digital whitening
  
  3843   Tue Nov 2 00:17:01 2010 SureshConfigurationLockingTemporary changes to the Video MuxFiber
coupling 1064 nm light at the end of X arm
This
  
  3844   Tue Nov 2 11:34:53 2010 josephb, alexUpdateCDSdiagconfd running, excitations back in dttProblem:
Diagnostic test tools was starting
with errors.
  
  3845   Tue Nov 2 13:51:40 2010 josephb, yutaUpdateCDSRFM slowdown problemProblem:
Each RFM memory location which needs
to be read by a front end model slows the
  
  3846   Tue Nov 2 15:24:18 2010 josephbUpdateCDSc1ioo and c1mcs only sending MC_L, MC1_PIT, MC1_YAWIn order to have the c1mcs model run, we're
running with only 3 RFM channels between
c1ioo and c1mcs at the moment.  This
  
  3847   Tue Nov 2 16:24:07 2010 KojiUpdateAuxiliary lockingAlignment for the green in the X trans table [Kiwamu Koji]
Today we found the green beam
from the end was totally missing at the vertex.
  
  3848   Tue Nov 2 16:49:02 2010 JenneConfigurationCamerasCabling on the PSL tableDear whomever setup the camera on the SW
corner of the PSL table,
It would be handy if, even for temporary
  
  3849   Wed Nov 3 02:23:11 2010 yutaSummaryCDSchecking whitening filter boardSummary:
  Last night, I found that some
of the input channels have wrong hardware
 MC3SEN.png 
  3850   Wed Nov 3 02:37:39 2010 yutaSummaryGreen Lockingcoarse locked green beat frequency(Kiwamu, Yuta)

 Screenshot_LowFreqLock.png 
  3851   Wed Nov 3 03:00:47 2010 KojiSummaryGreen Lockingcoarse locked green beat frequencyWow! Great guys!!   
  3852   Wed Nov 3 09:32:00 2010 ranaSummaryCDSEurocard board swapping When swapping Eurocard boards, it
is safest to first turn down the power supplies
and then do the swapping. 
  
  3853   Wed Nov 3 15:13:55 2010 josephbUpdateCDSTemporary RFM slow read work aroundProblem:
Each RFM read in the c1mcs model
is adding ~7 microseconds to the cycle time. 
  
  3854   Wed Nov 3 16:49:31 2010 steveUpdateGeneralstorage cabinet is in placeThe south end of IFO room 104 was reshuffled.
The flow bench was moved all the way to the
south end to create more room for the crane
 P1070018.JPG 
  3855   Wed Nov 3 17:01:01 2010 josephbSummaryCDSComparison of RFM read times Problem:
RFM reads are slow.  Rolf has
said it should take 2-3 microseconds per
  
  3856   Wed Nov 3 19:14:00 2010 ranaUpdatePSLPMC mode matching updateI moved the lens just before the PMC to
check the mode matching landscape. The PMC
trans went up from ~6.5 to ~6.8. That's 5%
  
  3857   Wed Nov 3 21:19:40 2010 yutaUpdateCDSput LOCKIN to c1ioo model and checked(Joe, Yuta)

Summary:
 Screenshot_C1IOO_LOCKIN.png 
  3858   Wed Nov 3 23:58:45 2010 ranaUpdateElectronicsCougarsI looked at this web page: http://www.teledyne-cougar.com/Index.asp
for the RF company that Rich has recently
started using.
  
  3859   Thu Nov 4 03:13:46 2010 SureshUpdateLockingFibre coupling 1064nm light at the south-end table[Kiwamu,
Suresh]
We
  
  3860   Thu Nov 4 15:15:43 2010 josephbUpdateCDSModified feCodeGen.pl, fmseq.pl, and suspension screensFeature Requested:
Have the CPU_meter change change
color at various alarm levels.  These
  
  3861   Thu Nov 4 15:27:33 2010 josephb, yutaUpdateCDSc1ioo test points not workingProblem:
We can't access any of the c1ioo
computer testpoints.  Dataviewer and
  
  3862   Thu Nov 4 17:24:49 2010 steveUpdateGeneralconflat flanges for MIT8 pieces of 10" CF blanks were shipped
to MIT
 P1070020.JPG 
  3863   Thu Nov 4 17:53:29 2010 yutaUpdateCDSprimitive python script for A2L measurementSummary:
 
I wrote
 a2ltest.png 
  3864   Thu Nov 4 17:57:27 2010 steveUpdateGeneralBeamScanner is working againKoji, Suresh and Steve,
The beam scanner is back from repair. 
Koji and Suresh helped to move the I/O address
 P1070024.JPG 
  3865   Thu Nov 4 19:00:57 2010 SureshUpdateLockingFibre coupling 1064nm light at the south-end tableThe Fluke
Visual Fault locator (Visifault) arrived
and I used it to couple 1064nm light into
  
  3866   Thu Nov 4 19:26:51 2010 SureshUpdateLockingChanges to the Video MUX reversedAll the
temporary changes to the video cables and
the video MUX ( 3843
  
  3867   Fri Nov 5 09:08:14 2010 steveUpdateSUSepoxyPhysical Electronics: Vac-Seal #288-6000
arriving Monday. Our last bag used last week
had a p/n 1002003 with expiration date  
 11081001.PDF 
  3868   Fri Nov 5 14:06:19 2010 yutaUpdateIOOtried to align MC by A2L measurement(Suresh, Kiwamu, Yuta)

Summary:
 A2LmeasurementFigures.png 
  3869   Fri Nov 5 15:20:18 2010 josephb, alexSummaryCDS40m computer slow down solvedProblem:
The 40m computers were responding
sluggishly yesterday, to the point of being
  
  3870   Fri Nov 5 16:40:22 2010 josephb, alexUpdateCDSc1ioo now has working awgtpmanProblem:
We couldn't set testpoints on the
c1ioo machine.
  
  3871   Fri Nov 5 19:33:18 2010 JenneUpdateElectronicsThe beginnings of the new phase of the RF workJoon Ho and I took a look at the RF stuff
that Alberto left, and we determined that
we've got most everything that we need. 
  
  3872   Fri Nov 5 21:49:12 2010 ranaSummaryCDS40m computer slow down solved


   
        
            
  
  3873   Fri Nov 5 23:05:43 2010 ranaConfigurationIOOioo.db file changed in c1iool0 to get back MC TRANS 
We like to have the MC TRANS channels
so that we can run all of our old scripts
  
  3874   Sat Nov 6 00:49:04 2010 KojiUpdateIOOIMC table work[Suresh, Koji]
- Removed MCT optics in the
  
  3875   Sat Nov 6 01:54:15 2010 FrankSummaryComputersvirus definition file update on laptop for dinocami took
some pictures with the dinocam this afternoon.
I used the laptop computer next to it using
  
  3876   Sat Nov 6 07:26:54 2010 yutaSummaryIOOreduced common mode displacement of the beam through MC1 to MC3(Koji, Suresh, Yuta)

Summary:
 A2LMCalign.png 
  3877   Sat Nov 6 16:13:14 2010 ranaSummaryCDS40m computer slow down solvedAs part of the effort to debug what was
happening with the slow computers, I disabled
the auto MEDM snapshots process that Yoichi/Kakeru
  
  3878   Mon Nov 8 10:37:14 2010 KojiUpdateIOOThe 10% pick-off for MCREFL was replaced to a HR mirrorAs MC2 Trans mon QPD is temporary removed
for fixing, we needed a reference for the
MC alignment.
  
  3879   Mon Nov 8 10:48:58 2010 kiwamuUpdateGreen Locking80MHz VCO : PLL open loop looks good   vco_pll.pngVCO_PLL.png 
  3880   Mon Nov 8 14:30:15 2010 josephb, yutaUpdateCDSAdded LIGONDSIP setting to cshrc.40mWe added the following line to the cshrc.40m
file in the 64-bit linux and 32-bit linux
sections:
  
  3881   Mon Nov 8 16:03:46 2010 kiwamuUpdateGreen Locking80MHz VCO : PLL open loop looks good


   
        
            
  
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